Triberti Stefano, Serino Silvia, Argenton Luca, Riva Giuseppe
Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy.
Applied Technology for Neuro-Psychology Lab. Istituto Auxologico Italiano, Milan, Italy.
Stud Health Technol Inform. 2015;219:107-11.
This paper provides an empirical research about virtual reality users' avatar embodiment. According to literature, users that are embodied/incarnated in their avatars show a tendency to perceive avatars' failures as their own mistakes. Therefore, they are likely to monitor their own hands on the device they're using (e.g.: keyboard) when they perceive a failure in the interaction (a behavior named "focus shift"). We hypothesize that the phenomenon of focus shift is sensitive to different types of failures that can affect the multiple elements involved in the interaction. Thirty participants guided an avatar through a videogame-like virtual environment. The participants were exposed to three experimental manipulations (defective keyboard, defective avatar, defective virtual environment). We counted the number of focus shifts that participants showed in response to these three manipulated anomalies. Results showed a significantly high number of focus shifts in the condition with defective virtual environment. The findings are discussed with reference to mediation theory, explaining the role of action/feedback matching in the phenomenon of avatar embodiment.
本文提供了一项关于虚拟现实用户的虚拟化身体现的实证研究。根据文献，在其虚拟化身中得以体现/化身的用户表现出一种将虚拟化身的失败视为自己错误的倾向。因此，当他们在交互中察觉到失败（一种名为“注意力转移”的行为）时，他们可能会在自己正在使用的设备（例如：键盘）上监控自己的手。我们假设注意力转移现象对不同类型的失败很敏感，这些失败会影响交互中涉及的多个元素。30名参与者在一个类似电子游戏的虚拟环境中引导一个虚拟化身。参与者经历了三种实验操作（有缺陷的键盘、有缺陷的虚拟化身、有缺陷的虚拟环境）。我们统计了参与者针对这三种人为制造的异常情况所表现出的注意力转移次数。结果显示，在虚拟环境有缺陷的情况下，注意力转移的次数显著较高。研究结果参照中介理论进行了讨论，解释了行动/反馈匹配在虚拟化身体现现象中的作用。
